[PATCH] drm/mediatek: mtk_hdmi_v2: fix VID_DOWNSAMPLE_CONFIG register offset

Julien Stephan jstephan at baylibre.com
Fri Aug 28 05:10:47 PDT 2026


According to the datasheet, VID_DOWNSAMPLE_CONFIG is at offset 0x8f0;
0x8d0 is the VID_CSC_COEFF_0 register.

Fixes: 8d0f79886273 ("drm/mediatek: Introduce HDMI/DDC v2 for MT8195/MT8188")
Signed-off-by: Julien Stephan <jstephan at baylibre.com>
---
 drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h b/drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h
index 521b35c7e14d..bf3ebf5492d1 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_regs_v2.h
@@ -173,7 +173,7 @@
 #define  TPI_AUDIO_LOOKUP_EN		BIT(2)
 
 /* Video downsampling configuration */
-#define VID_DOWNSAMPLE_CONFIG		0x8d0
+#define VID_DOWNSAMPLE_CONFIG		0x8f0
 #define  C444_C422_CONFIG_ENABLE	BIT(0)
 #define  C422_C420_CONFIG_ENABLE	BIT(4)
 #define  C422_C420_CONFIG_BYPASS	BIT(5)

---
base-commit: 1b78070aaef63512688aebfbc82365ef9d6660f1
change-id: 20260828-mtk-hdmi-v2-fix-register-offset-879afc38cad1

Best regards,
--  
Julien Stephan <jstephan at baylibre.com>




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